Catena 4551

Product

The Catena 4551 is a complete single-board IoT device for LoRaWAN projects.

Based on the Murata CMWX1ZZABZ-078, and designed to be compatible with the Adafruit Feather family of development boards and accessories, the Catena 4551 is a great platform for LoRaWAN investigation and deployment. It works well with The Things Network, or any LoRaWAN 1.0 or 1.1 network in the 865 to 923 MHz range.

Lightweight and small (roughly 2″ by 0.9″), the 4551 needs no external components to measure and send temperature, pressure, humidity, and lux, powered from USB or two AAA cells.

Because of the embedded FRAM, the Catena 4551 fully meets the requirements of LoRaWAN 1.1, without worrying about EEPROM wearout or wear-leveling, both for ABP and OTAA.

Specifications and Features

Murata LoRaWAN module

Semtech SX1276 LoRa radio

STM32L082 CPU (Cortex M0+, 24 MHz, 192K flash, 20K RAM)

High quality RF engineering

Certified for US and EU

Compatible with IN866, AS923, AU921 bands

Integrated sensors

Pressure

Temperature

Humidity

Lux

Additional Features

2K bytes FRAM for LoRaWAN provisioning info and frame counters — power can be removed completely without requiring a new join to the network, and without losing uplink and downlink count values (required for LoRaWAN 1.1)

Boost converter for powering from disposable batteries (such as 2x AAA cells) (Note: in contrast to to the Catena 4450, there is no charger in this model. Contact MCCI for information on a variant supporting Li-Po batteries and USB charging.)

USB or SWD for download and debug

Pin-compatible with Adafruit Feather M0 family of boards (some limitations because the of functional differences between the Murata module and the Atmel SAMD21 CPU used in the Feather M0)

The DIY developer board (“DIY”): same as BASIC (with terminal strips and antennas), adding screw terminals, AAA battery clip, and two industrial AAA batteries. Works with US, Europe, Asia-923, India, and Australian band plans.

The contact monitoring system (“M101”): assembled unit for monitoring up to four contact closures, with screw terminals, 2xAAA battery clip and whip antenna.

For assembled units, variant codes select dedicated antennas for US915/AS923/AU923, EU868, or IN866 operation. Some models are available with U.FL or SMA connectors for use with external antenna. Contact us for more details.

Check back for future variants and accessories.

Bulk pack lots of twelve units: only the boards. Order all accessories separately.

Development cradle with spring terminals, for quickly provisioning and testing Catena 4551 units.

Polycarbonate enclosures for indoor or outdoor use.

Units certified for operation in Japan (will require use of antenna supplied by MCCI)

Development kit with Catena 4551, ST-Link debugger, and USB-serial adapter